Improvement in harrows



V. M. CHAFEE,

Revolving Harrow.

No. 20,325. Patented May 25, 1858.

O O x o O Q I S D r: O 1/ J O Q a 0 j d D 6 Q 0 (ID ANLPNUTO-LITHD. COJLY. (OSBDRNE'S PROCESS) UNITED STATES PATENT OFFICE.

V. M. GHAFEE, OF GRAYVILLE, ILLINOIS.

IMPROVEMENT IN HARROWS.

Specification forming part of Letters Patent No, 20,325, dated May 25, 1858.

To all whom it may concern:

Be it known that I, Voseo M. CHAFEE, of Grayville, in the county of White and State of Illinois, have invented a new and useful Improvement in Rotary Hal-rows, the construction and operation of which I have described in the following specification and illustrated in the accompanying drawings with sufficient clearness to enable competent and skillful workmen in the arts to which it pertains oris most nearly allied to make and use my invention.

My said invention consists in the arrangement and construction of parts by which two rotary barrows hung in the same frame are made to overlap in their action without the agency of the third to cause them to do so, and also in the arrangeu'lent and construction of parts by which the distance they shall overlap may be adjusted, as hereinafter more fully set forth.

In the accompanying drawings, Figurel isa plan of my improved harrow. Fig. 2 is arear sectional elevation of it, showing parts at the right hand of the line XX as drawn across Fig. 1.

AA are two wheel-shaped harrows hung upon the shafts B B in the frame G D D. The general construction of this frame is very clearly shown in the drawings. The parts I) D are united at the forward end of the link E, which passes through strap-eyes d cl for the purpose. The parts D D are connected farther back by the bar 0, as shown. This bar keeps the center of the harrows the same distance from each other without reference to the adjustment in other respects. The belts or shafts B B are so hung in the other parts as to cant or tip the harrowsin such amanner as to bring the outer side of said harrows the lowest, and weights F 1*" are attached by means of the hinged arms G G to aid in keeping them in that position.

Hat-rows have been made with three rotating wheels in a triangular frame, and by this means the necessary lap secured to insure the perfect cultivation of the ground. In my harrow I arrange the parts as to secure this overlapping action with two harrows, thus dispensing with the necessity and consequent expense of the third.

It will be observed that the pieces D D are of different lengths, and also that they have holes 0 c, which allow theimplement to be adjusted to give the lap required. To allow the bolts to be firmly secured in the frame, and to bind the parts which constitute it firmly together, a jam-nut, f, is put upon each of the bolts immediately above the harrow, which is.

hung upon it, and this allows the parts of the frame to be drawn down upon the nut, while at the same time the wheel below is allowed to turn freely between the nut and the head h of the bolt.

The particular improvement which constitutes my said invention, and which I claim as having been orignally and first invented by me, 1s-

The combination of the side pieces, D D, across bar 0, or their equivalents, with the rotating harrowingwheels, the parts being so arranged in connection with each other, substantially as described, to produce the result stated.

VOSOO M. GHAFEE. Witnesses:

S. J. ORANGE, JAMES DIDDLE. 

